pomer



(No Model.) 2 Shets-Sheet 1.

I H. N. POMEROY.

ROLLER MILL.

No. 254,043. Patented Feb. 21,1882.

WITNESSES I By Attorney s- INVENTOR flenlfy m Tome ray,

N. PETERS, Phnln-Limugnpher. Washington. D c.

HENRY N. POMEROY, OF MADISON, WISCONSIN, ASSIGNOR OF TO CHARLES E. BALL, OF SAME PLACE.

- UNITED STATES PATENT OFFICE.

ON E-THIRD ROLLER-MILL.

SPECIFICATION forming part of Letters Patent No. 254,043, dated February 21, 1882. Application filed J une 25, 1881. (No model.)

To all whom it may concern Be it known that I, HENRY N. POMEROY, of Madison, in the State of Wisconsin, have invented certain newand useful Improvements in Roller-Mills for the Manufacture of Flour from Wheat, of which the following is a specification, referen ce being bad to the accompanying drawings.

The object of my invention is to split each re kernel of grain in the line of the crease or natural groove of the berry as the first step in the reduction preparatory to subsequent operations for producing superior flour. I do this for the purpose of freeing or detaching, as

I 5 nearly as possible, the germ and crease-dirt,

and producing coarse middlings of even granulation, with the least possible irregular breaking of the kernels and production of flour, so that afterward the germ and crease-dirt can be separated from vthe divided grains with the least possible Waste or interminglingof flour. In the accompanying drawings, illustrating my invention, Figure 1 shows an end elevation of my improved mill 5 Fig. 2, a half-plan of the same. Fig. 3 is a vertical elevation,

' partly broken away, on the lines f Fig. 1.

In these figures, A A indicate the rolls, which have corresponding circumferential V- shaped grooves of suitable size to receive ker- 3o nels of wheat arranged in line with them. The

dividing-partitions of these grooves are sharpedged, and they project centrally into the grooves of the roll opposite, so as tocentrally and longitudinally split each kernel of grain.

5 The rolls are made adjustable by mechanism such as shown for simultaneously and equally moving both ends of one of them, or by any other suitable adjusting mechanism.

The mechanism shown consists of eccentricsv 40 B, placed between the journal-boxes of the roll-shafts, operated by a screw, D, at each end of the rolls, and connected by bevel-gears d d and a shaft D, one of the sets of boxes being arranged to slide upon their supports in any 5 ordinary way.

The feeding apparatus consists of two rolls, E E, located at av proper distance above the splitting-rolls, and connected with them byinolined corrugated aprons F F, so adjusted with respect to the feed-rolls as to deliver the kernels along their corrugations or troughs into the grooves of the splitting-rolls.

Above thefeed-rolls aretwo inclined aprons,

G G, which convey the grain in opposite directions to the feed-rolls.

The working parts above described are inclosed withina suitable casin g, H, which serves to confine the grain and as a support for the feeding apparatus.

The guides or aprons F F are provided with a cover, f, which serves to confine the grain in its passage from the feed-rolls to the splittingrolls.

The operation is as follows: The grain is supplied upon the upper surfaces of the aprons G G and falls upon'the rolls E E, which should be driven in opposite directions at equal speeds-that is, each in a direction to feed the grain downward onto the corrugated aprons F F. The troughs in these aprons are of a. size corresponding to the grooves in the splitting-rolls, and are in line with them, and these troughs serve to arrange the kernels endwise, so that they descend and enter the grooves in thesplitting-rolls in that position, and are there merely divided longitudinally with great regularity without crushing them into flour, and the half-grainsarc then delivered below into any suitable receptacle or apparatus for further treatment.

I do not confine myselfto the details ofmechanism above described, as the principleof my invention consists in delivering kernels of grain end foremost to longitudinally-dividing mechanism, which severs them, as described, and it may be embodied and practiced with some mechanical modification of the devices Ihave illustrated and explained. v For example, the grooves in the rolls need not necessarily be V-sha-ped; but notwithstanding this, my invention does not broadly cover the idea of cutting kernels of grain without grinding them, and I am aware of German Patent N 0. 4,545 of 1878, in which rollers with circumferential cutting-blades opposite each other are shown 5 for thepurpose of cutting kernels ofgrain into pieces without grinding them.

What I claim as of my invention, and desire to secure by Letters Patent, is-- 1. The combination of two grooved grain- 3. The combination of the apron G, the feedroll E, the inclined corrugated apron F, and the grooved rolls A A, substantially as set forth. I 5

In testimony whereofI have hereunto subscribed my name this 13th day of June, A. D.

HENRY N. POMEROY. Witnesses:

M. LAFOLLETTE, H. H. RAND. 

